Screening or separating machine.



1. STU RTEVANT. SCREENING 0R SEPARATING MACHINE APPLICATION FILED DEC.12, 1916. 1 LE9 Patented June 12, 1917.

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T. J. STURTEVANT.

SCREENING 0R SEPARATING MACHINE. APPLICATION FILED 0Ec.12.19l6.

Patented June 12, 1917.

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T. J. STURTEVANT.

SCREENING OR- SEPARATING MACHINE.

' APPLICATION FILED DEC. 12 1915- 1 ,929,8 1 2 Patented June 12, 1917.

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T. J. STURTEVANT. SCREENING OR SEPARATING MACHINE.

- v APPLICATION FILED DEC. 12 I915- 1 ,Q9,T1 2., Patented June 12, 1917.

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STURTEVAN T MILL COMPANY,

A CORPORATION OF MAINE.

SCREENING OR SEPARATING MACHINE.

Specification of Letters Patent.

Patented June 12, 1917.

Application filed December 12, 1916. Serial No. 136,552.

To all "whom it may concern:

Be it known that I, TrroMAs J. STURTE- VANT, a citizen of the UnitedStates, residing at Wellesley, in the county of Norfolk and State ofMassachusetts, have invented or discovered certain new and usefulImprovements in Screening or Separating Machines, of which the followingis a specification, reference being had therein to the accompanyingdrawings.

This invention relates to separating machines which are made indetachable sections or units placed side by side, so that a machine ofany desired capacitymay be furnished at short notice, each of the detachable sections or units being provided with its own screens and itsown jarring mechanism. This detachable unit construction is advantageousto the manufacturer in that a machine of any desired capacity may bequickly provided by furnishing any desired number of sections or units,and a large machine may be conveniently transported in sections whichcan be readily secured together in setting up the machine for use.Moreover the user of a machine comprising a number of complete sectionsor units may set up a machine of any desired capacity by joiningtogether any desired number of such sections or units. In

accordance with the present invention a common distributer will supplythe material to be screened by the several units or sections of theseparating machine, such distributer preferably consisting of a rotaryconveyer mounted in a feed box common to the several sections of thescreening or separating machine and provided with means for distributingto each section or unit its proper amount of material. This feed box, asalso the rotary conveyer or dis tributer, may be made in detachablesections corresponding to the sections or units of the separator; or thefeeding and distributlng parts may be made integral, and in such casemay be furnished in lengths corresponding to the number of sections orunits of the screening or separating machine which are to be usedtogether. The feed box is preferably of such construction that the shaftcarrying the rotary conveyer may be readily inserted into or removedfrom the front thereof, and said feed box is preferably provided with ahinged rear door affording ready access to its chamber, for

' from each other,

' sections or units hinged at its top so desired.

adjustment of the feed purposes.

In the accompanying drawings Figure 1 is a front view of a two-sectionor two-unit inclined separator embodying the present invention, with thecover of one section or unit in raised position, and Fig. 2 is a brokenout side view of the same. Fig. 3 is an end view of the two-unitseparator looking from the bottom of Fig. 1. Fig. 4 1s a rear view ofthe top part of a twosection separator provided with a sectional feedbox, and Fig. 5 is an end elevation of one unit of the sectional feedbox. Fig. 6 shows in detail a removable front standard or bracing partfor the sectional feed box. Figs. 7 and 8 are detail side and end viewsrespectively of one of the removable slides at the ends of the feed box.Fig. 9 is a detail view of part of a sectional conveyer.

Referring to the drawings, 12 denotes the casings of the units of thesectional inclined separator, these casings having complete side partsso that the chambers of the adjoining units or sections are fullydivided each casing thus having its own screening or separating chamber.The 12 are detachably secured together by means of bolts 10 passingthrough bracing sleeves l1 interposed between the adjacent sides of thesections or units, as more clearly shown in Fig. 3. Each separatorsection or unit is provided with a movable cover 13 which is preferablythat it may be lifted, as more clearly shown in Fig. 2, when access tothe chamber of a section or unit is The operating portion of the jarringmechanism of each section or unit is mounted on its hinged cover and maybe of any desired construction. This operating mechanism, as hereinshown, is similar to that shown and described in the Sturtevant U. S.Patents Nos. 1,035,262 and 1,114,064, and comprises rotating shafts 11mounted on standards fixed to the covers 13, and provided with arms 15carrying rollers 16 which lift pivoted hammers 17 and which hammers,when released from said rollers, strike on the jarring posts 18. Eachscreen section is provided with a nonvibrating coarse or scalper screen19 and a vibrated fine screen 20 below said coarse or scalper screen.The vibrating screen 20 is sustained by spring supports 21 beneath plateor for other which are located stops 9.). which limit the downwardmovements of the vibrating screen, these spring supports and stops beingpreferably located at the sides of the screen, as clearly shown in Fig.3. The vibrating screens 20 are provided with cross plates 23 on whichare mounted sockets 2-1 which" receive the lower ends of the jarringposts 18 passing loosely through sleeves 25v mounted on cross plates 26with which the scalper screen .19 is provided.

Mounted at the upper ends of the inclined separator sections onunits isa feed box 27 in which is journaled a shaft 28 provided with a screwconveyor 29 which distributes the material to be screened or separatedand which material is supplied to said feed box from an opening orhopper located at 30 at oneend of said feed box at the point where saidfeed vbox overhangs the separator, so that the material supplied to thescreens will fully cover th same late ally at the upper ends thereof.This feed box and the rotary conveyer or distributer which is mountedtherein is common to the several sections or units of the separator soto supply material to all of the same, such material passing over anadjustable'feed plate 31 having an inclined upper edge which ishighest'at the end of the feed box where the material enters. This feedplate may be made'in independent sections as shown in Figure. The feedbox is provided infront with a hinged door or cover 32 which, whenunbolted, may be raised for the convenientinsertion of the conveyorshaft and its bearings QStsccured in place by screws or bolts 28 and infront of said bearings are slides or removable parts .33 which may betaken out when the conveyer ings are to be removed or inserted, saidslides or removable parts being held in place by said door or cover 32when the latter is closedand secured. The feed box is prefe'ably.provided at its rear side with a hinged door 3i, affording ready accessto the adjustable feed plate 31; and each casing, affording a screeningchamber, is also preferably provided at its .upper end with a hingeddoor which may be opened to afford access to said screeningchamber. asfor the insertion or removalzo't' the screens.

The feed box is preferably removably bolted to the casing sections orunits and may be made in one part, as shown inldig. 1, of asuitablelength to supply materialto a plurality of screen seetions'or units; orthis feedbox may be made in sections, as shown in Figs. it and 5,approximately corresponding in length to the width of the sections orunits of the screen or separator. In such case the contiguous parts ofsaid. screen sections are provided with flanges 36 for the reception ofbolts by which said screen sections may be detachably secured together.

shaft and its bear-- In order to enable the conveyer shaft to beconveniently removed from or inserted into the front of the feed box inthis sectional construction of feed box-just referred to, the said feedbox will be provided at its front with removable standards or bracingparts 27 which may be taken out when the hinged door 32 is lifted forthe insertion or removal of the conveyer and the feed shaft 28. Also theconveyer shaft and screw conveyer may be made in one part as shown inFig. 1, or said shaft and its attached conveyer may be made indetachable parts, as shown in Fig. 9, corresponding in length to thewidth of the detachable casing sections, one part for each section orunit of the screening or separating machine. In this sectional conveyerconstruction the contiguous ends of the sections of the conveyerareprovided with fixed collars 37 having flanges tl irough which attachingscrews or bolts 38 pass. i

From the foregoing it will be understood that a separator comprising aplurality of detachable sections or units will be provided for supplyingthe material to be screened or separated to the several sections orunits of the separator, and that such common feed box and distributing'conveyer, which is re movably mounted at the upper ends'of the sectionsor units of the inclined separator, may be made in lengths correspondingto the width of a plurality separator sections or units, or may be madein detachable parts each corresponding in length to the width of aseparator section or unit, these sectional parts being more convenientfor transportation than the longer parts would be.

The generalconstruction of the sectional separator herein shown anddescribed is not herein claimed, as it formsthe subject-matter of myapplication No.'133,399,' filed Nov. 25,1916.

This invention is not to be understood as being limited to theparticular details of eonstruction herein'set forth, as such details maybe varied widely, within the province of mechanical skill, withoutdeparting from the spirit and scope of the invention.

Having thus described my invention 1 claim and desire tosecure byLetters Paten't: I

1. In a separator, the combination with a. plurality of inclinedseparator sections or units comprising complete casingsarranged side byside'and detachably secured together and each provided with itsowninc'lined screen or screens and it's own jarring mechanism, of afeeclfbox and distributer common to said sections or units, said feedbox being removably mounted at the upper ends of said sections 'orunits,and being thus adapted to supply material to all of the same. 1 i

2. In a separator, the combination with a plurality of inclinedseparator sections or units comprising complete casings arranged side byside and detachably secured together and each provided with its ownscreen or screens and its own jarring mechanism, of a feed box formed insections corresponding in length to the width of said screen sections orunits, and a distributer common to said sections or units, said feed boxbeing removably mounted at the upper ends of said sections or units, andbeing thus adapted to supply material to all of the same.

3. In a separator, the combination with a plurality of inclinedseparator sections or units comprising complete casings arranged side byside and detachably secured together and each provided with its own inclined screen or screens and its own jarring mechanism, of a feed boxand distributer common to said sections or units and both formed indetachable sections c0rresponding in length to the width of saidseparator sections or units, said feed box being re-' movably mounted atthe upper ends of said sections or units, and being thus adapted tosupply material to all of the same.

4:. An inclined separator provided at its upper end with a feed boxhaving a door at its front, a rotary distributer mounted in said feedbox, and removable slides at the ends of said feed box in front of saiddistributer, so that the latter may be inserted or removed from thefront of said feed box when said door is opened.

5. An inclined separator provided at its upper end with a feed boxhaving a door at its front, a rotary distributer mounted in said feedbox and removable slides at the ends of said feed box in front of saiddistributer, so that the latter may be inserted or removed from thefront of said feed box when said door is opened, said slides being heldin place in front of the journals of said distributer by said door whenthe latter is closed.

6. In a separator, the combination with a plurality of inclinedseparator sections or units comprising complete casings arranged side byside and detachably secured together and each provided with its ownCopies of this patent may be obtained for five cents each, by addressingthe inclined screen or screens and .its own jarring mechanism, of a feedbox and dis tributer common to said sections or units, said feed boxbeing removably mounted at the upper ends of said sections or units, andbeing thus adapted to supply material to all of the same, and said feedbox being formed in detachable sections corresponding in length to thewidth of said separator sections or units.

7. In a separator, the combination with a plurality of inclinedseparator sections or units comprising complete casings arranged side byside and detachably secured together and each provided with its owninclined screen or screens and its own jarring mechanism, of a feed boxand distributer common to said sections or units, said feed box beingremovably mounted at the upper ends of said sections or units,

and being thus adapted to supply material to all of the same, saiddistributer being formed in detachable sections corresponding in lengthto the width of said separator sections or units.

8. A separator comprising a plurality of complete separator unitsdetachably secured together and each having its own casing, screens andjarring mechanism, of a feed box mounted at the upper end of saidseparator units and formed in detachable sections corresponding inlength to the width of said separator units, a rotary screw conveyer ordistributer mounted in said feed box and formed in detachable sectionscorresponding in length to the width of said separator sections, and afeed plate formed in independently adjustable sections corresponding inlength to the width of said separator sections.

9. An inclined separator provided at its upper end with a feed boxhaving a door at its back, combined with a rotary distributer mounted insaid feed box, and a feed plate in said feed box, said feed plate beingin independently adjustable sections.

In testimony whereof I aflix my signature.

THOMAS JOSEPH STURTEVANT.

Commissioner of Patents,

Washington, D. 0.

